Friday
December 6, 2013

# Posts by s

Total # Posts: 290

math
That's not true. 0 isn't equal to 16. & It isn't greater than 16.

math
definition of area ??? helpp :/

Chemistry
Is (NH4)2 CO3 ionic or covalent?

Chemistry
Made a mistake. ****Mole Fraction = 0.0303 moles NH4CL

Chemistry
Thanks so much for the feedback! I think I figured the answers out! :) Molarity = 0.161 M Molality = 1.74 m Mole Fraction = 1.57E-4 moles NH4Cl

Chemistry
An aqueous solution is 8.50% ammonium chloride, NH4Cl, by mass. The density of the solution is 1.024g/mL. Calculate the molality, mole fraction, and molarity of NH4Cl in the solution. I know the formulas needed but I'm not sure where to start. M = moles solute/1 L solution...

Chemistry
Thanks so much for your feedback! :)

Chemistry
Wouldn't I just leave the answer as 0.0003 moles since the question is asking for the amount of the moles of the iron ion Fe +3 ? :) That's when I got confused.

Chemistry
A student mixed 15.0 mL of a solution of 0.0200 M ferric chloride FeCl3, with 25.0 mL of water. Calculate the moles of iron ion, Fe +3 in the resulting solution. (I think this is a Dilution problem, but I wasn't really sure how to start it out. Any help would be greatly ap...